Cz 550 28 nosler question

[mkored]

I need some advice.
I have a Cz 550 cambered in 28 nosler
I was shooting factory hornady eldx but I decided to reload for it 140 gr accubonds nosler cases
For load development I used the spent hornady cases. I sized and trimmed them to book got my load so I loaded the same load in the nosler cases and well I didint take the time to make sure they chamber and it’s stupid hard to close the bolt
It did not do this during load development with the hornady cases or any of the other factory rounds I put down it just the new loaded rounds in nosler cases
I did the marker trick it seems the necks are tight in the chamber.
Do I take the ammo apart and figure out how to turn necks or can a gunsmith open the chamber
I tried my load in nosler cases in a browning 28 nosler and the bolt closes with ease.

 

[rustyinbend]

Did you full-length size, and bump the shoulder back a couple of thousandths? That's what it sounds like is going on here. If so, all you can really do is to disassemble the cartridges, and bump the shoulder. Re-milling the chamber sounds a bit extreme.

 

[mkored]

Yes I full length sized and bumped shoulders.

 

[rustyinbend]

Yes I full length sized and bumped shoulders.

Interesting. This happened to me, and a shoulder bump cured it.

 

[rustyinbend]

Yes I full length sized and bumped shoulders.

Is it possible your Case-to-OGive length is too long, and you're pushing the bullet into the lands? (Just thinking out loud here ...)

 

[Steel head]

How far are you bumping the shoulder back?
Have you measured a fired neck and compared it to a loaded neck?
Does a sized case without Bullet chamber properly?
Checked to make sure bullet isn’t into the lands?

 

[mkored]

I have never had this happen where bumping the shoulder did not fix it.

I measured the chamber I am not on or at the lands.
It seems I am marking contact only on the neck of the case in the camber.

 

[MK20]

If you can find a different set of dies to borrow I would give that a go and see what happens.

 

[mkored]

I will try that thank you